Asset Details
Do you wish to reserve the book?
Enhancing photocatalytic H2O2 production with Au co-catalysts through electronic structure modification
Hey, we have placed the reservation for you!
By the way, why not check out events that you can attend while you pick your title.
Oops! Something went wrong.
Looks like we were not able to place the reservation. Kindly try again later.
Are you sure you want to remove the book from the shelf?
Enhancing photocatalytic H2O2 production with Au co-catalysts through electronic structure modification
Do you wish to request the book?
Enhancing photocatalytic H2O2 production with Au co-catalysts through electronic structure modification
Please be aware that the book you have requested cannot be checked out. If you would like to checkout this book, you can reserve another copy
We have requested the book for you!
Your request is successful and it will be processed during the Library working hours. Please check the status of your request in My Requests.
Oops! Something went wrong.
Looks like we were not able to place your request. Kindly try again later.
Journal Article
Enhancing photocatalytic H2O2 production with Au co-catalysts through electronic structure modification
2024
Overview
Gold-based co-catalysts are a promising class of materials with potential applications in photocatalytic H
2
O
2
production. However, current approaches with Au co-catalysts show limited H
2
O
2
production due to intrinsically weak O
2
adsorption at the Au site. We report an approach to strengthen O
2
adsorption at Au sites, and to improve H
2
O
2
production, through the formation of electron-deficient Au
δ+
sites by modifying the electronic structure. In this case, we report the synthesis of TiO
2
/MoS
x
-Au, following selective deposition of Au onto a MoS
x
surface which is then further anchored onto TiO
2
. We further show that the catalyst achieves a significantly increased H
2
O
2
production rate of 30.44 mmol g
−1
h
−1
in O
2
-saturated solution containing ethanol. Density functional theory calculations and X-ray photoelectron spectroscopy analysis reveal that the MoS
x
mediator induces the formation of electron-deficient Au
δ+
sites thereby decreasing the antibonding-orbital occupancy of Au-O
ads
and subsequently enhancing O
2
adsorption. This strategy may be useful for rationally designing the electronic structure of catalyst surfaces to facilitate artificial photosynthesis.
Photocatalytic H
2
O
2
production using Au is hindered by its inherently weak O
2
adsorption. Herein, the authors modify the electronic structure of Au with MoS
x
to form electron deficient Au sites to promote O
2
adsorption and H
2
O
2
production.
